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Proceedings Paper

Combining rigorous diffraction calculation and GPU accelerated nonsequential raytracing for high precision simulation of a linear grating spectrometer
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Paper Abstract

Simulation of grating spectrometers constitutes the problem of propagating a spectrally broad light field through a macroscopic optical system that contains a nanostructured grating surface. The interest of the simulation is to quantify and optimize the stray light behaviour, which is the limiting factor in modern high end spectrometers. In order to accomplish this we present a simulation scheme that combines a RCWA (rigorous coupled wave analysis) simulation of the grating surface with a selfmade GPU (graphics processor unit) accelerated nonsequential raytracer. Using this, we are able to represent the broad spectrum of the light field as a superposition of many monochromatic raysets and handle the huge raynumber in reasonable time.

Paper Details

Date Published: 23 May 2011
PDF: 11 pages
Proc. SPIE 8083, Modeling Aspects in Optical Metrology III, 80830F (23 May 2011); doi: 10.1117/12.889175
Show Author Affiliations
Florian Mauch, Univ. Stuttgart (Germany)
David Fleischle, Univ. Stuttgart (Germany)
Wolfram Lyda, Univ. Stuttgart (Germany)
Wolfgang Osten, Univ. Stuttgart (Germany)
Torsten Krug, Instrument Systems GmbH (Germany)
Reto Häring, Instrument Systems GmbH (Germany)

Published in SPIE Proceedings Vol. 8083:
Modeling Aspects in Optical Metrology III
Bernd Bodermann, Editor(s)

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